Question

A ship is stationary at sea.

Answer 1

Bearing is a topic that deals with the distance and location of a given object with respect to a reference point. Thus in the given question, the ship is 57.23 km to the yacht.

Bearing is a topic that considers the distance and position of a given object with respect to a reference point. Thus the angles are usually measured with reference to the north pole.

Thus to solve the given question, let the required distance be represented by x.

Applying the cosine rule, we have;

$c^{2}$ = $a^{2}$ + $b^{2}$ - 2ab Cos C

The angle C between the line from ship to tugboat and from tugboat to yacht can be determined as;

C = $10^{o}$ + $40^{o}$

C = $50^{o}$

Thus,

$c^{2}$ = $36^{2}$ + $27^{2}$ + 2(36 x 27) Cos $50^{o}$

  = 1296 + 729 + 1944(0.6429)

  = 2025 + 1249.8

$c^{2}$ = 3274.8

c = $\sqrt{3274.8}$

  = 57.2259

c = 57.23

Therefore, the distance from the ship to the yacht is 57.23 km.

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